dpp-nfc: Stop process after successful handover client completion

terminate_now was not being set in the only_one case with connection
handover. Set it for that case as well as the tag cases to automatically
close down the link once it is not needed anymore.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>

wpa_supplicant/examples/dpp-nfc.py

@@ -476,8 +476,8 @@ def run_dpp_handover_client(handover, alt=False):
         continue_loop = False
 
     global no_wait
-    if no_wait:
-        print("Trying to exit..")
+    if no_wait or only_one:
+        summary("Trying to exit..")
         global terminate_now
         terminate_now = True